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-rw-r--r--quantum/process_keycode/process_midi.c199
-rw-r--r--quantum/process_keycode/process_midi.h3
-rw-r--r--quantum/quantum_keycodes.h1
-rw-r--r--tmk_core/protocol/lufa/lufa.c13
-rw-r--r--tmk_core/protocol/lufa/lufa.h2
5 files changed, 211 insertions, 7 deletions
diff --git a/quantum/process_keycode/process_midi.c b/quantum/process_keycode/process_midi.c
index 577dad43a..bc48b3905 100644
--- a/quantum/process_keycode/process_midi.c
+++ b/quantum/process_keycode/process_midi.c
@@ -1,10 +1,204 @@
#include "process_midi.h"
+#if 0
bool midi_activated = false;
uint8_t midi_starting_note = 0x0C;
int midi_offset = 7;
+#endif
+
+typedef union {
+ uint16_t raw;
+ struct {
+ uint8_t octave :4;
+ uint8_t velocity :4;
+ uint8_t channel :4;
+ };
+} midi_config_t;
+
+midi_config_t midi_config;
+
+#define MIDI_INVALID_NOTE 0xFF
+
+#if 0
+typedef struct {
+ uint64_t low;
+ uint64_t high;
+} uint128_t;
+
+#if 0
+static void right_shift_uint128_t(uint128_t* val, uint8_t shift)
+{
+ uint64_t high_mask = ~0 >> (64 - shift);
+ uint64_t high_bits = (val->high & high_mask) << (64 - shift);
+ val->high = val->high >> shift;
+ val->low = (val->low >> shift) | high_bits;
+}
+#endif
+
+static uint64_t left_shift_uint64_t(uint64_t val, uint8_t shift)
+{
+ dprintf("left_shift_uint64_t(val, %c) ...\n", val, shift);
+ while (shift > 16u) {
+ dprintf(" left_shift_uint64_t: val=?, shift=%c\n", val, shift);
+ val <<= 16;
+ shift -= 16;
+ }
+ dprintf(" left_shift_uint64_t: val=?, shift=%c\n", val, shift);
+ val <<= shift;
+ return val;
+}
+
+static void set_bit_uint128_t(uint128_t* val, uint8_t shift)
+{
+ uint64_t x = 1u;
+
+ if (shift < 64)
+ {
+ x = left_shift_uint64_t(x, shift);
+ dprintf("x: %d\n", x);
+ dprintf("set_bit_uint128_t (%d): 0x%016X%016X\n", shift, 0, x);
+ val->low = val->low | left_shift_uint64_t(1u, shift);
+ }
+ else
+ {
+ x = left_shift_uint64_t(x, shift - 64);
+ dprintf("set_bit_uint128_t (%d): 0x%016X%016X\n", shift, x, 0);
+ val->high = val->high | left_shift_uint64_t(1u, shift - 64);
+ }
+}
+
+static void clear_bit_uint128_t(uint128_t* val, uint8_t shift)
+{
+ if (shift < 64)
+ {
+ val->low = val->low & ~left_shift_uint64_t(1u, shift);
+ }
+ else
+ {
+ val->high = val->high & ~left_shift_uint64_t(1u, shift - 64);
+ }
+}
-bool process_midi(uint16_t keycode, keyrecord_t *record) {
+static bool is_bit_set_uint128_t(const uint128_t* val, uint8_t shift)
+{
+ if (shift < 64)
+ {
+ return !!(val->low & (1u << shift));
+ }
+ else
+ {
+ return !!(val->high & (1u << (shift - 64)));
+ }
+}
+
+uint128_t note_status = { 0, 0 };
+#endif
+
+
+#define MIDI_MAX_NOTES_ON 10
+
+typedef struct {
+ uint8_t note;
+ uint8_t tone;
+} midi_notes_on_array_entry_t;
+
+typedef struct {
+ uint8_t length;
+ midi_notes_on_array_entry_t values[MIDI_MAX_NOTES_ON];
+} midi_notes_on_array_t;
+
+static midi_notes_on_array_t notes_on;
+
+inline uint8_t compute_velocity(uint8_t setting)
+{
+ return (setting + 1) * (128 / (MIDI_VELOCITY_MAX - MIDI_VELOCITY_MIN + 1));
+}
+
+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;
+ notes_on.length = 0;
+}
+
+bool process_midi(uint16_t keycode, keyrecord_t *record)
+{
+ switch (keycode) {
+ case MIDI_TONE_MIN ... MIDI_TONE_MAX:
+ {
+ uint8_t channel = midi_config.channel;
+ uint8_t tone = keycode - MIDI_TONE_MIN;
+ uint8_t velocity = compute_velocity(midi_config.velocity);
+ if (record->event.pressed && notes_on.length < MIDI_MAX_NOTES_ON) {
+ uint8_t note = 12 * midi_config.octave + tone;
+ midi_send_noteon(&midi_device, channel, note, velocity);
+ dprintf("midi noteon channel:%d note:%d velocity:%d\n", channel, note, velocity);
+ notes_on.values[notes_on.length].note = note;
+ notes_on.values[notes_on.length].tone = tone;
+ notes_on.length++;
+ }
+ else {
+ for (uint8_t i = 0; i < notes_on.length; i++) {
+ uint8_t note = notes_on.values[i].note;
+ if (tone == notes_on.values[i].tone) {
+ midi_send_noteoff(&midi_device, channel, note, velocity);
+ dprintf("midi noteoff channel:%d note:%d velocity:%d\n", channel, note, velocity);
+
+ for (uint8_t j=i; j < notes_on.length - 1; j++)
+ {
+ notes_on.values[j] = notes_on.values[j + 1];
+ }
+
+ notes_on.length--;
+ break;
+ }
+ }
+ }
+ return false;
+ }
+ case MIDI_OCTAVE_MIN ... MIDI_OCTAVE_MAX:
+ if (record->event.pressed)
+ midi_config.octave = keycode - MIDI_OCTAVE_MIN;
+ return false;
+ case MI_OCTD:
+ if (record->event.pressed && midi_config.octave > 0)
+ midi_config.octave--;
+ return false;
+ case MI_OCTU:
+ if (record->event.pressed && midi_config.octave < (MIDI_OCTAVE_MAX - MIDI_OCTAVE_MIN))
+ midi_config.octave++;
+ return false;
+ case MIDI_VELOCITY_MIN ... MIDI_VELOCITY_MAX:
+ if (record->event.pressed)
+ midi_config.velocity = keycode - MIDI_VELOCITY_MIN;
+ return false;
+ case MI_VELD:
+ if (record->event.pressed && midi_config.velocity > 0)
+ midi_config.velocity--;
+ return false;
+ case MI_VELU:
+ if (record->event.pressed)
+ midi_config.velocity++;
+ return false;
+ case MIDI_CHANNEL_MIN ... MIDI_CHANNEL_MAX:
+ if (record->event.pressed)
+ midi_config.channel = keycode - MIDI_CHANNEL_MIN;
+ return false;
+ case MI_CHD:
+ if (record->event.pressed)
+ midi_config.channel--;
+ return false;
+ case MI_CHU:
+ if (record->event.pressed)
+ midi_config.channel++;
+ return false;
+ case MI_SUS:
+ //TODO
+ return false;
+ };
+
+#if 0
if (keycode == MI_ON && record->event.pressed) {
midi_activated = true;
#ifdef AUDIO_ENABLE
@@ -64,5 +258,6 @@ bool process_midi(uint16_t keycode, keyrecord_t *record) {
if (keycode < 0xFF) // ignores all normal keycodes, but lets RAISE, LOWER, etc through
return false;
}
- return true;
+#endif
+ return true;
}
diff --git a/quantum/process_keycode/process_midi.h b/quantum/process_keycode/process_midi.h
index acd4fc1b1..b0e0aeb83 100644
--- a/quantum/process_keycode/process_midi.h
+++ b/quantum/process_keycode/process_midi.h
@@ -2,6 +2,9 @@
#define PROCESS_MIDI_H
#include "quantum.h"
+#include "midi.h"
+
+void midi_init(void);
bool process_midi(uint16_t keycode, keyrecord_t *record);
diff --git a/quantum/quantum_keycodes.h b/quantum/quantum_keycodes.h
index 3728fa366..a024a9639 100644
--- a/quantum/quantum_keycodes.h
+++ b/quantum/quantum_keycodes.h
@@ -189,6 +189,7 @@ enum quantum_keycodes {
MI_VEL_1 = MIDI_VELOCITY_MIN,
MI_VEL_2,
MI_VEL_3,
+ MI_VEL_4,
MI_VEL_5,
MI_VEL_6,
MI_VEL_7,
diff --git a/tmk_core/protocol/lufa/lufa.c b/tmk_core/protocol/lufa/lufa.c
index ba49284c9..fb60658df 100644
--- a/tmk_core/protocol/lufa/lufa.c
+++ b/tmk_core/protocol/lufa/lufa.c
@@ -1101,16 +1101,21 @@ void cc_callback(MidiDevice * device,
uint8_t chan, uint8_t num, uint8_t val);
void sysex_callback(MidiDevice * device,
uint16_t start, uint8_t length, uint8_t * data);
+
+void setup_midi(void)
+{
+ midi_init();
+ midi_device_init(&midi_device);
+ midi_device_set_send_func(&midi_device, usb_send_func);
+ midi_device_set_pre_input_process_func(&midi_device, usb_get_midi);
+}
#endif
int main(void) __attribute__ ((weak));
int main(void)
{
-
#ifdef MIDI_ENABLE
- midi_device_init(&midi_device);
- midi_device_set_send_func(&midi_device, usb_send_func);
- midi_device_set_pre_input_process_func(&midi_device, usb_get_midi);
+ setup_midi();
#endif
setup_mcu();
diff --git a/tmk_core/protocol/lufa/lufa.h b/tmk_core/protocol/lufa/lufa.h
index a049fd43c..a51573786 100644
--- a/tmk_core/protocol/lufa/lufa.h
+++ b/tmk_core/protocol/lufa/lufa.h
@@ -49,7 +49,7 @@
#include <LUFA/Drivers/USB/USB.h>
#include "host.h"
#ifdef MIDI_ENABLE
- #include "midi.h"
+ #include "process_midi.h"
#endif
#ifdef __cplusplus
extern "C" {
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-05-23 23:02:57 +0200