diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/class/midi/midi2_device.c | 15 | ||||
| -rw-r--r-- | src/class/midi/midi2_device.h | 4 |
2 files changed, 11 insertions, 8 deletions
diff --git a/src/class/midi/midi2_device.c b/src/class/midi/midi2_device.c index 360d70967..48cb3d388 100644 --- a/src/class/midi/midi2_device.c +++ b/src/class/midi/midi2_device.c @@ -266,10 +266,12 @@ static void _nego_handle_stream_msg(midi2d_interface_t* p_midi, const uint32_t* static void _nego_process_rx(midi2d_interface_t* p_midi) { tu_edpt_stream_t* ep_rx = &p_midi->ep_stream.rx; - uint8_t first_byte; + uint8_t word_bytes[4]; - while (tu_edpt_stream_peek(ep_rx, &first_byte)) { - uint8_t mt = (first_byte >> 4) & 0x0F; + while (tu_fifo_peek_n(&ep_rx->ff, word_bytes, 4) == 4) { + // UMP words travel LSB-first on the wire and in LE memory, so MT is in + // the high nibble of byte 3, not byte 0. + uint8_t mt = (word_bytes[3] >> 4) & 0x0F; uint8_t pkt_words = midi2_ump_word_count(mt); uint32_t pkt_bytes = (uint32_t)pkt_words * 4; @@ -310,10 +312,11 @@ uint32_t tud_midi2_n_ump_read(uint8_t itf, uint32_t* words, uint32_t max_words) uint32_t total_read = 0; while (total_read < max_words) { - uint8_t first_byte; - if (!tu_edpt_stream_peek(ep_rx, &first_byte)) break; + uint8_t word_bytes[4]; + if (tu_fifo_peek_n(&ep_rx->ff, word_bytes, 4) < 4) break; - uint8_t mt = (first_byte >> 4) & 0x0F; + // UMP words travel LSB-first; MT is the high nibble of byte 3, not byte 0. + uint8_t mt = (word_bytes[3] >> 4) & 0x0F; uint8_t pkt_words = midi2_ump_word_count(mt); if (total_read + pkt_words > max_words) break; diff --git a/src/class/midi/midi2_device.h b/src/class/midi/midi2_device.h index b7caf97a3..a1c51f047 100644 --- a/src/class/midi/midi2_device.h +++ b/src/class/midi/midi2_device.h @@ -49,11 +49,11 @@ extern "C" { //--------------------------------------------------------------------+ #ifndef CFG_TUD_MIDI2_TX_BUFSIZE - #define CFG_TUD_MIDI2_TX_BUFSIZE TUD_EPSIZE_BULK_MAX + #define CFG_TUD_MIDI2_TX_BUFSIZE 256 #endif #ifndef CFG_TUD_MIDI2_RX_BUFSIZE - #define CFG_TUD_MIDI2_RX_BUFSIZE TUD_EPSIZE_BULK_MAX + #define CFG_TUD_MIDI2_RX_BUFSIZE 256 #endif #ifndef CFG_TUD_MIDI2_TX_EPSIZE |