mirror of
https://github.com/alsa-project/alsa-tools.git
synced 2026-03-13 05:33:45 -04:00
Added MMC support by Rui Nuno Capela <rncbc@rncbc.org>
MMC support has been improved and transport LEDs is getting almost functional. Tascam control protocol sysex decoding is also complete (LEDs control mainly).
This commit is contained in:
Takashi Iwai
parent
9615f45528
commit
5313c94163
7 changed files with 541 additions and 35 deletions
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@ -25,7 +25,9 @@
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extern int verbose;
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// Differential wheel tracking constants.
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#define W_DELTA_MAX 0xff
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#define W_DELTA_MIN (W_DELTA_MAX >> 1)
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void us428_lights::init_us428_lights()
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{
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@ -71,11 +73,14 @@ void Cus428State::SliderChangedTo(int S, unsigned char New)
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V.SetTo(S, New);
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if (S == eFaderM || !LightIs(eL_Mute0 + S))
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SendVolume(V);
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} else
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Midi.SendMidiControl(0x40 + S, ((unsigned char*)us428_ctls)[S] / 2);
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}
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else SliderSend(S);
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}
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void Cus428State::SliderSend(int S)
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{
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Midi.SendMidiControl(0x40 + S, ((unsigned char*)us428_ctls)[S] / 2);
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}
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void Cus428State::KnobChangedTo(eKnobs K, bool V)
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{
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@ -103,6 +108,73 @@ void Cus428State::KnobChangedTo(eKnobs K, bool V)
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break;
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default:
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switch (K) {
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case eK_STOP:
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if (verbose > 1)
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printf("Knob STOP now %i\n", V);
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if (V) TransportToggle(T_STOP);
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Midi.SendMidiControl(K, V);
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break;
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case eK_PLAY:
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if (verbose > 1)
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printf("Knob PLAY now %i", V);
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if (V) TransportToggle(T_PLAY);
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if (verbose > 1)
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printf(" Light is %i\n", LightIs(eL_Play));
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Midi.SendMidiControl(K, V);
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break;
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case eK_REW:
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if (verbose > 1)
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printf("Knob REW now %i", V);
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if (V) TransportToggle(T_REW);
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if (verbose > 1)
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printf(" Light is %i\n", LightIs(eL_Rew));
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Midi.SendMidiControl(K, V);
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break;
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case eK_FFWD:
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if (verbose > 1)
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printf("Knob FFWD now %i", V);
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if (V) TransportToggle(T_F_FWD);
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if (verbose > 1)
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printf(" Light is %i\n", LightIs(eL_FFwd));
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Midi.SendMidiControl(K, V);
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break;
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case eK_RECORD:
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if (verbose > 1)
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printf("Knob RECORD now %i", V);
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if (V) TransportToggle(T_RECORD);
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if (verbose > 1)
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printf(" Light is %i\n", LightIs(eL_Record));
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Midi.SendMidiControl(K, V);
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break;
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case eK_SET:
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if (verbose > 1)
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printf("Knob SET now %i", V);
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bSetLocate = V;
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break;
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case eK_LOCATE_L:
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if (verbose > 1)
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printf("Knob LOCATE_L now %i", V);
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if (V) {
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if (bSetLocate)
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aWheel_L = aWheel;
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else {
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aWheel = aWheel_L;
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LocateSend();
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}
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}
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break;
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case eK_LOCATE_R:
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if (verbose > 1)
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printf("Knob LOCATE_R now %i", V);
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if (V) {
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if (bSetLocate)
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aWheel_R = aWheel;
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else {
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aWheel = aWheel_R;
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LocateSend();
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}
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}
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break;
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case eK_InputMonitor:
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if (verbose > 1)
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printf("Knob InputMonitor now %i", V);
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@ -163,7 +235,166 @@ void Cus428State::WheelChangedTo(E_In84 W, char Diff)
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break;
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case eWheel:
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Param = 0x60;
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// Update the absolute wheel position.
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WheelDelta((int) ((unsigned char*) us428_ctls)[W]);
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LocateSend();
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break;
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}
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Midi.SendMidiControl(Param, ((unsigned char*)us428_ctls)[W]);
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}
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// Convert time-code (hh:mm:ss:ff:fr) into absolute wheel position.
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void Cus428State::LocateWheel ( unsigned char *tc )
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{
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#if 0
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aWheel = (60 * 60 * 30) * (int) tc[0] // hh - hours [0..23]
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+ ( 60 * 30) * (int) tc[1] // mm - minutes [0..59]
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+ ( 30) * (int) tc[2] // ss - seconds [0..59]
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+ (int) tc[3]; // ff - frames [0..29]
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#else
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aWheel = (60 * 60 * 3) * (int) tc[0] // hh - hours [0..23]
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+ ( 60 * 3) * (int) tc[1] // mm - minutes [0..59]
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+ ( 3) * (int) tc[2] // ss - seconds [0..59]
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+ (int) tc[3] / 10; // ff - frames [0..29]
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#endif
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}
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// Convert absolute wheel position into time-code (hh:mm:ss:ff:fr)
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void Cus428State::WheelTimecode ( unsigned char *tc )
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{
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int W = aWheel;
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#if 0
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tc[0] = W / (60 * 60 * 30); W -= (60 * 60 * 30) * (int) tc[0];
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tc[1] = W / ( 60 * 30); W -= ( 60 * 30) * (int) tc[1];
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tc[2] = W / ( 30); W -= ( 30) * (int) tc[2];
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tc[3] = W;
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tc[4] = 0;
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#else
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tc[0] = W / (60 * 60 * 3); W -= (60 * 60 * 3) * (int) tc[0];
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tc[1] = W / ( 60 * 3); W -= ( 60 * 3) * (int) tc[1];
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tc[2] = W / ( 3); W -= ( 3) * (int) tc[2];
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tc[3] = W * 10;
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tc[4] = 0;
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#endif
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}
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// Get the wheel differential.
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void Cus428State::WheelDelta ( int W )
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{
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// Compute the wheel differential.
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int dW = W - W0;
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if (dW > 0 && dW > +W_DELTA_MIN)
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dW -= W_DELTA_MAX;
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else
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if (dW < 0 && dW < -W_DELTA_MIN)
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dW += W_DELTA_MAX;
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W0 = W;
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aWheel += dW;
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// Can't be less than zero.
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if (aWheel < 0)
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aWheel = 0;
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}
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// Send the MMC wheel locate command...
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void Cus428State::LocateSend ()
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{
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unsigned char MmcData[6];
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// Timecode's embedded on MMC command.
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MmcData[0] = 0x01;
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WheelTimecode(&MmcData[1]);
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// Send the MMC locate command...
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Midi.SendMmcCommand(MMC_CMD_LOCATE, MmcData, sizeof(MmcData));
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}
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// Toggle application transport state.
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void Cus428State::TransportToggle ( unsigned char T )
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{
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switch (T) {
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case T_PLAY:
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if (uTransport & T_PLAY) {
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uTransport = T_STOP;
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Midi.SendMmcCommand(MMC_CMD_STOP);
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} else {
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uTransport &= T_RECORD;
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uTransport |= T_PLAY;
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Midi.SendMmcCommand(MMC_CMD_PLAY);
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}
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break;
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case T_RECORD:
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if (uTransport & T_RECORD) {
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uTransport &= ~T_RECORD;
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Midi.SendMmcCommand(MMC_CMD_RECORD_EXIT);
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} else {
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uTransport &= T_PLAY;
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uTransport |= T_RECORD;
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Midi.SendMmcCommand(uTransport & T_PLAY ? MMC_CMD_RECORD_STROBE : MMC_CMD_RECORD_PAUSE);
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}
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break;
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default:
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if (uTransport & T) {
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uTransport = T_STOP;
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} else {
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uTransport = T;
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}
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if (uTransport & T_STOP)
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Midi.SendMmcCommand(MMC_CMD_STOP);
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if (uTransport & T_REW)
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Midi.SendMmcCommand(MMC_CMD_REWIND);
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if (uTransport & T_F_FWD)
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Midi.SendMmcCommand(MMC_CMD_FAST_FORWARD);
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break;
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}
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TransportSend();
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}
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// Set application transport state.
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void Cus428State::TransportSet ( unsigned char T, bool V )
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{
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if (V) {
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if (T == T_RECORD) {
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uTransport |= T_RECORD;
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} else {
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uTransport = T;
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}
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} else {
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if (T == T_RECORD) {
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uTransport &= ~T_RECORD;
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} else {
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uTransport = T_STOP;
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}
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}
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TransportSend();
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}
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// Update transport lights.
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void Cus428State::TransportSend()
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{
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LightSet(eL_Play, (uTransport & T_PLAY));
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LightSet(eL_Record, (uTransport & T_RECORD));
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LightSet(eL_Rew, (uTransport & T_REW));
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LightSet(eL_FFwd, (uTransport & T_F_FWD));
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LightSend();
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}
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// Reset MMC state.
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void Cus428State::MmcReset()
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{
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W0 = 0;
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aWheel = aWheel_L = aWheel_R = 0;
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bSetLocate = false;
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uTransport = 0;
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TransportSend();
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LocateSend();
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}
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