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 07c90cf80..000000000 --- a/quantum/api/api_sysex.c +++ /dev/null | |||
| @@ -1,72 +0,0 @@ | |||
| 1 | /* Copyright 2016 Jack Humbert, Fred Sundvik | ||
| 2 | * | ||
| 3 | * This program is free software: you can redistribute it and/or modify | ||
| 4 | * it under the terms of the GNU General Public License as published by | ||
| 5 | * the Free Software Foundation, either version 2 of the License, or | ||
| 6 | * (at your option) any later version. | ||
| 7 | * | ||
| 8 | * This program is distributed in the hope that it will be useful, | ||
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 11 | * GNU General Public License for more details. | ||
| 12 | * | ||
| 13 | * You should have received a copy of the GNU General Public License | ||
| 14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| 15 | */ | ||
| 16 | #include "api_sysex.h" | ||
| 17 | #include "sysex_tools.h" | ||
| 18 | #include "print.h" | ||
| 19 | #include "qmk_midi.h" | ||
| 20 | |||
| 21 | void send_bytes_sysex(uint8_t message_type, uint8_t data_type, uint8_t* bytes, uint16_t length) { | ||
| 22 | // SEND_STRING("\nTX: "); | ||
| 23 | // for (uint8_t i = 0; i < length; i++) { | ||
| 24 | // send_byte(bytes[i]); | ||
| 25 | // SEND_STRING(" "); | ||
| 26 | // } | ||
| 27 | if (length > API_SYSEX_MAX_SIZE) { | ||
| 28 | xprintf("Sysex msg too big %d %d %d", message_type, data_type, length); | ||
| 29 | return; | ||
| 30 | } | ||
| 31 | |||
| 32 | // The buffer size required is calculated as the following | ||
| 33 | // API_SYSEX_MAX_SIZE is the maximum length | ||
| 34 | // In addition to that we have a two byte message header consisting of the message_type and data_type | ||
| 35 | // This has to be encoded with an additional overhead of one byte for every starting 7 bytes | ||
| 36 | // We just add one extra byte in case it's not divisible by 7 | ||
| 37 | // Then we have an unencoded header consisting of 4 bytes | ||
| 38 | // Plus a one byte terminator | ||
| 39 | const unsigned message_header = 2; | ||
| 40 | const unsigned unencoded_message = API_SYSEX_MAX_SIZE + message_header; | ||
| 41 | const unsigned encoding_overhead = unencoded_message / 7 + 1; | ||
| 42 | const unsigned encoded_size = unencoded_message + encoding_overhead; | ||
| 43 | const unsigned unencoded_header = 4; | ||
| 44 | const unsigned terminator = 1; | ||
| 45 | const unsigned buffer_size = encoded_size + unencoded_header + terminator; | ||
| 46 | uint8_t buffer[encoded_size + unencoded_header + terminator]; | ||
| 47 | // The unencoded header | ||
| 48 | buffer[0] = 0xF0; | ||
| 49 | buffer[1] = 0x00; | ||
| 50 | buffer[2] = 0x00; | ||
| 51 | buffer[3] = 0x00; | ||
| 52 | |||
| 53 | // We copy the message to the end of the array, this way we can do an inplace encoding, using the same | ||
| 54 | // buffer for both input and output | ||
| 55 | const unsigned message_size = length + message_header; | ||
| 56 | uint8_t* unencoded_start = buffer + buffer_size - message_size; | ||
| 57 | uint8_t* ptr = unencoded_start; | ||
| 58 | *(ptr++) = message_type; | ||
| 59 | *(ptr++) = data_type; | ||
| 60 | memcpy(ptr, bytes, length); | ||
| 61 | |||
| 62 | unsigned encoded_length = sysex_encode(buffer + unencoded_header, unencoded_start, message_size); | ||
| 63 | unsigned final_size = unencoded_header + encoded_length + terminator; | ||
| 64 | buffer[final_size - 1] = 0xF7; | ||
| 65 | midi_send_array(&midi_device, final_size, buffer); | ||
| 66 | |||
| 67 | // SEND_STRING("\nTD: "); | ||
| 68 | // for (uint8_t i = 0; i < encoded_length + 5; i++) { | ||
| 69 | // send_byte(buffer[i]); | ||
| 70 | // SEND_STRING(" "); | ||
| 71 | // } | ||
| 72 | } | ||
