ash/loopy_midi_controller
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Map buttons to custom CC values with reverse-map feedback

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ash
2026-06-30 04:43:42 +00:00
parent 3389cc9403
commit 62b0604508
2 changed files with 16 additions and 15 deletions
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include/app_task.h
+1
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@@ -28,6 +28,7 @@ private:
static const uint8_t NUM_PADS = 10; static const uint8_t NUM_PADS = 10;
PadMapping pad_mapping[NUM_PADS]; PadMapping pad_mapping[NUM_PADS];
bool last_switch_state[NUM_PADS]; bool last_switch_state[NUM_PADS];
uint8_t cc_map[NUM_PADS];
// SysEx reassembly buffer // SysEx reassembly buffer
static const uint8_t SYSEX_MAX_LEN = 64; static const uint8_t SYSEX_MAX_LEN = 64;
src/app_task.cpp
+15 -15
View File
@@ -6,12 +6,14 @@ AppTask::AppTask(LedStub* led, SwitchStub* sw, UsbMidiTransport* midi)
// Launchpad X standard: bottom row = notes 36-45 (C2 to A2) on channel 1 // Launchpad X standard: bottom row = notes 36-45 (C2 to A2) on channel 1
const uint8_t launchpad_notes[10] = {36, 37, 38, 39, 40, 41, 42, 43, 44, 45}; const uint8_t launchpad_notes[10] = {36, 37, 38, 39, 40, 41, 42, 43, 44, 45};
const uint8_t cc_assignments[10] = {112, 22, 113, 25, 114, 24, 115, 26, 116, 117};
for (uint8_t i = 0; i < NUM_PADS; i++) { for (uint8_t i = 0; i < NUM_PADS; i++) {
pad_mapping[i].physical_switch = i; pad_mapping[i].physical_switch = i;
pad_mapping[i].midi_channel = 1; pad_mapping[i].midi_channel = 1;
pad_mapping[i].midi_note = launchpad_notes[i]; pad_mapping[i].midi_note = launchpad_notes[i];
pad_mapping[i].led_index = i; pad_mapping[i].led_index = i;
cc_map[i] = cc_assignments[i];
last_switch_state[i] = false; last_switch_state[i] = false;
} }
} }
@@ -23,7 +25,10 @@ void AppTask::begin() {
process_midi_event(event); process_midi_event(event);
}); });
Serial.println("[APP] Controller ready - Launchpad X mode (notes 36-45, ch1)"); Serial.println("[APP] Controller ready - CC mode");
for (uint8_t i = 0; i < NUM_PADS; i++) {
Serial.printf("[APP] Pad %d -> CC%d -> LED%d\n", i + 1, cc_map[i], i);
}
} }
void AppTask::update() { void AppTask::update() {
@@ -92,18 +97,16 @@ void AppTask::process_midi_event(const MidiEvent& event) {
Serial.printf("[APP] NOTE Ch%d ignored (not Launchpad channel 1-3)\n", midi_channel); Serial.printf("[APP] NOTE Ch%d ignored (not Launchpad channel 1-3)\n", midi_channel);
} }
} }
// CONTROL_CHANGE fallback for generic MIDI / Loopy Pro generic mode // CONTROL_CHANGE: look up which pad this CC belongs to
else if (event.type == MidiEvent::CONTROL_CHANGE) { else if (event.type == MidiEvent::CONTROL_CHANGE) {
uint8_t cc_num = event.data1; uint8_t cc_num = event.data1;
uint8_t cc_val = event.data2; uint8_t cc_val = event.data2;
// Map CC to pad: CC2-11 (Loopy Pro), CC0-9, CC36-45 for (uint8_t i = 0; i < NUM_PADS; i++) {
if (cc_num >= 2 && cc_num < 2 + NUM_PADS) { if (cc_map[i] == cc_num) {
led_index = cc_num - 2; led_index = i;
} else if (cc_num < NUM_PADS) { break;
led_index = cc_num; }
} else if (cc_num >= 36 && cc_num < 36 + NUM_PADS) {
led_index = cc_num - 36;
} }
if (led_index < NUM_PADS) { if (led_index < NUM_PADS) {
@@ -113,8 +116,8 @@ void AppTask::process_midi_event(const MidiEvent& event) {
cc_val, cc_val,
led_index led_index
); );
Serial.printf("[APP] CC -> LED: Ch%d CC%d Val%d -> LED%d\n", Serial.printf("[APP] CC%d Val%d -> LED%d\n",
midi_channel, cc_num, cc_val, led_index); cc_num, cc_val, led_index);
} else { } else {
Serial.printf("[APP] CC Ch%d CC%d Val%d - no mapping\n", Serial.printf("[APP] CC Ch%d CC%d Val%d - no mapping\n",
midi_channel, cc_num, cc_val); midi_channel, cc_num, cc_val);
@@ -126,15 +129,12 @@ void AppTask::process_switch_event(uint8_t switch_id, bool pressed) {
for (uint8_t i = 0; i < NUM_PADS; i++) { for (uint8_t i = 0; i < NUM_PADS; i++) {
if (pad_mapping[i].physical_switch == switch_id) { if (pad_mapping[i].physical_switch == switch_id) {
uint8_t channel = pad_mapping[i].midi_channel; uint8_t channel = pad_mapping[i].midi_channel;
// Loopy Pro Generic mode mirrors CC back on the same CC it received uint8_t cc_num = cc_map[i];
// CC2-11 maps to pads 0-9
uint8_t cc_num = 2 + i;
uint8_t value = pressed ? 127 : 0; uint8_t value = pressed ? 127 : 0;
if (pressed) { if (pressed) {
midi_transport->send_cc(channel, cc_num, value); midi_transport->send_cc(channel, cc_num, value);
} }
// Don't send CC 0 on release — Loopy Pro uses velocity 0 to turn off
Serial.printf("[APP] Switch %d -> Ch%d CC%d Val%d (%s)\n", Serial.printf("[APP] Switch %d -> Ch%d CC%d Val%d (%s)\n",
switch_id, channel, cc_num, value, switch_id, channel, cc_num, value,