aboutsummaryrefslogtreecommitdiffstats
path: root/quantum/process_keycode/process_midi.c
diff options
context:
space:
mode:
Diffstat (limited to 'quantum/process_keycode/process_midi.c')
-rw-r--r--quantum/process_keycode/process_midi.c58
1 files changed, 54 insertions, 4 deletions
diff --git a/quantum/process_keycode/process_midi.c b/quantum/process_keycode/process_midi.c
index f7a8b6650..d09aa0b38 100644
--- a/quantum/process_keycode/process_midi.c
+++ b/quantum/process_keycode/process_midi.c
@@ -1,4 +1,5 @@
#include "process_midi.h"
+#include "timer.h"
typedef union {
uint16_t raw;
@@ -6,6 +7,7 @@ typedef union {
uint8_t octave :4;
uint8_t velocity :4;
uint8_t channel :4;
+ uint8_t modulation_interval :4;
};
} midi_config_t;
@@ -16,6 +18,10 @@ midi_config_t midi_config;
#define MIDI_TONE_COUNT (MIDI_TONE_MAX - MIDI_TONE_MIN + 1)
static uint8_t tone_status[MIDI_TONE_COUNT];
+static uint8_t midi_modulation;
+static int8_t midi_modulation_step;
+static uint16_t midi_modulation_timer;
+
inline uint8_t compute_velocity(uint8_t setting)
{
return (setting + 1) * (128 / (MIDI_VELOCITY_MAX - MIDI_VELOCITY_MIN + 1));
@@ -26,14 +32,40 @@ void midi_init(void)
midi_config.octave = MI_OCT_0 - MIDI_OCTAVE_MIN;
midi_config.velocity = (MIDI_VELOCITY_MAX - MIDI_VELOCITY_MIN);
midi_config.channel = 0;
- #ifdef MIDI_USE_NOTE_ON_ARRAY
- notes_on.length = 0;
- #else
+ midi_config.modulation_interval = 8;
+
for (uint8_t i = 0; i < MIDI_TONE_COUNT; i++)
{
tone_status[i] = MIDI_INVALID_NOTE;
}
- #endif
+
+ midi_modulation = 0;
+ midi_modulation_step = 0;
+ midi_modulation_timer = 0;
+}
+
+void midi_task(void)
+{
+ if (timer_elapsed(midi_modulation_timer) < midi_config.modulation_interval)
+ return;
+ midi_modulation_timer = timer_read();
+
+ if (midi_modulation_step != 0)
+ {
+ dprintf("midi modulation %d\n", midi_modulation);
+ midi_send_cc(&midi_device, midi_config.channel, 0x1, midi_modulation);
+
+ if (midi_modulation_step < 0 && midi_modulation < -midi_modulation_step) {
+ midi_modulation = 0;
+ midi_modulation_step = 0;
+ return;
+ }
+
+ midi_modulation += midi_modulation_step;
+
+ if (midi_modulation > 127)
+ midi_modulation = 127;
+ }
}
bool process_midi(uint16_t keycode, keyrecord_t *record)
@@ -141,6 +173,24 @@ bool process_midi(uint16_t keycode, keyrecord_t *record)
midi_send_cc(&midi_device, midi_config.channel, 0x43, record->event.pressed ? 127 : 0);
dprintf("midi legato %d\n", record->event.pressed);
return false;
+ case MI_MOD:
+ midi_modulation_step = record->event.pressed ? 1 : -1;
+ return false;
+ case MI_MODSD:
+ if (record->event.pressed) {
+ midi_config.modulation_interval++;
+ // prevent overflow
+ if (midi_config.modulation_interval == 0)
+ midi_config.modulation_interval--;
+ dprintf("midi modulation interval %d\n", midi_config.modulation_interval);
+ }
+ return false;
+ case MI_MODSU:
+ if (record->event.pressed && midi_config.modulation_interval > 0) {
+ midi_config.modulation_interval--;
+ dprintf("midi modulation interval %d\n", midi_config.modulation_interval);
+ }
+ return false;
};
return true;